I used to live in Villa Park, within Orange, and there used to be a mobile guy that I used for some wrap work. I don't have his info anymore though.. Sorry.
Try CL? These guys look decent. Request a quote.
★ VEHICLE WRAP | CAR WRAPS | MATTE RESTYLING
If you are up for it though, you may consider plasti-dipping your whole car the color you want or taking it to someone that dips cars. Its about 1/3 the cost of a wrap and depending on how long you have to wrap for... it might save you some cash.
Good luck!